1515983966 has 16 divisors (see below), whose sum is σ = 2654125056. Its totient is φ = 635883576.

The previous prime is 1515983947. The next prime is 1515983969. The reversal of 1515983966 is 6693895151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1515983969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151306 + ... + 1152621.

It is an arithmetic number, because the mean of its divisors is an integer number (165882816).

Almost surely, 2^1515983966 is an apocalyptic number.

1515983966 is a deficient number, since it is larger than the sum of its proper divisors (1138141090).

1515983966 is a wasteful number, since it uses less digits than its factorization.

1515983966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303983.

The product of its digits is 1749600, while the sum is 53.

The square root of 1515983966 is about 38935.6387645047. The cubic root of 1515983966 is about 1148.7659013311.

The spelling of 1515983966 in words is "one billion, five hundred fifteen million, nine hundred eighty-three thousand, nine hundred sixty-six".